Phylloscopus in the North Sea (1 Viewer)

jmorlan said:

As far as I could determine, there were only four individual birds; these three and one Sedge Warbler. They were not present on 3 August when there was dense fog. I first noted them in the morning of 4 August when the fog cleared leaving overcast skies and almost no wind. By the end of the day only the Sedge Warbler was left. I believe they all arrived on the ship (possibly attracted by lights) at night. The next night we arrived in Amsterdam.

All four birds were feasting on Silver Y moths (Autographa gamma) which also arrived on the ship the same day, also evidently on some migration transit.

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